Seiko Cal. 4493 - 258

The Seiko 4493-258 represents an important milestone in Seiko's 1966 lineup. It features a Navy dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-4c864cdf9c63]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

42mm

Case Thickness

13.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Navy

Jewels

30j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1966

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